Meetprocedure voor de bepaling van Acid Volatile Sulfide en Simultaneously Extracted Metals in sediment en bodem

In 1992, the project "Equilibrium Partitioning" was initiated in order to evaluate the applicability of the equilibrium partitioning concept and the use of partition coefficients for the derivation of soil and sediment nuality criteria. This project is meant to support the setting of "Integrated environmental quality objectives". From a pilot study, it was suggested that the available amount of sulfide for the precipitation of heavy metals in anoxic sediments (Acid Volatile Sulfide) may be an important parameter in estimating the potential toxicity of a series of heavy metals for benthic organisms. However, knowledge about Acid Volatile Sulfide levels in Dutch marine and freshwater sediments were absent. The present report describes the development of an analytical procedure to determine Acid Volatile Sulfide and Simultaneously Extracted Metals in sediment and soils. Measured field data are included to illustrate the benefit of such a method in current research activities of the institute